I did a bar audit this weekend, and just about everyone around me seemed to send up red flags that they were mystery shoppers.
I enjoyed my drink, discreetly observing pours and cash handling while making notes in my head and keeping up with the football game on the nearby TV.
Meanwhile, the guy to my left asked for the bartender's name. The woman to my right photographed her food with her phone. Another patron paid cash, and when the change was returned without the check, he asked for a receipt. When a fourth customer started asking questions about food that were answered plain as day on the menu she was holding, I realized just how much I stood out compared my neighbors!
I suppose it's possible that a few of us were sent in at once to ensure a particular staff member was audited, or that a competitor hired an MSC and there was a scheduling coincidence. It was probably just further proof that many of the behaviors we fear will "out" us are in fact, fairly common.